"Those who choose to break our laws and enter illegally will no longer be able to use meritless claims to gain automatic admission into our country", he said without going into the specifics.
By law, immigrants can seek asylum either at ports of entry or once in the U.S. - even if they crossed illegally.
Trump's professed and enacted policy towards thousands of caravanners seeking asylum in the United States is shockingly unconstitutional. Just this week, he announced plans to send at least 5,200 active-duty troops ― and possibly as many as 15,000 ― to the U.S. -Mexico border to address migrant caravans, threatened to indefinitely detain asylum-seekers in "tent cities" and floated the idea of ending birthright citizenship by executive order.
Under current protocol, many asylum seekers are released while their cases make their way through backlogged courts - a process that can take years.
After three grueling weeks walking along highways and hitching rides, thousands of Central American migrants traveling in a caravan through southern Mexico were told Friday that they would soon be leapfrogging ahead to the nation's capital in buses only to have their hopes dashed nearly immediately when the offer was pulled. In the meantime, these troops will fill in the gaps and form a human wall to help border agents handle the crisis along our 2,000-mile southern border.
The only violence Trump has cited in justifying the militarization of the border is what he alleges took place along Mexico's border with Guatemala when the caravan of migrants confronted Mexican federal police at that border.
The lawsuit names President Trump, U.S. Attorney General Jeff Sessions, the Department of Immigration and Customs Enforcement (ICE), Homeland Security, and DHS Secretary Kirstjen Nielsen, among others, as the defendants.
"We're working on a system where they'll stay together", Trump said of families caught after crossing the border.
Associated Press President Donald Trump launched his campaign with an attack on immigrants and hasn't stopped since.
"We will defend our borders and we will defend our country".
Most of the migrants in the caravans are from Honduras.
"The military has all of a sudden been placed in a highly politicized environment regarding immigration", retired Lt. Gen. David Barno, who commanded USA forces in Afghanistan, said of the surge of troops to the border.
"I heard in the news Trump said close all the borders".
Though the Constitution obviously applies to those legally living in the US, legal precedent, including that confirmed by Antonin Scalia back in 1993, has applied due process to aliens in deportation proceedings.
In the same speech, he said the troops on the border - which now number 5,200 - would have instructions to open fire if migrants threw rocks at them, as they had at the Mexican authorities.
"You come into the country - you're like two months old ... and you're gonna bring 'em all - your aunts and uncles and grandfathers and lots of people", he said.
Migrants who cross illegally are generally arrested and often seek asylum or some other form of protection.
The speech follows a series of proposals and statements on immigration that Trump's opponents have called outlandish stunts.
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Andy Murray looks to sport management role for future talent
He says that he still wishes to compete in professional tennis but he also wants to expand his prospects and share his knowledge. At the moment he is juggling many balls and he wants to remain focused on what he knows, but over time his company will develop.